Ultrabroad linewidth orange-emitting nanowires LED for high CRI laser-based white lighting and gigahertz communications
Type
ArticleAuthors
Janjua, Bilal
Ng, Tien Khee

Zhao, Chao

Oubei, Hassan M.

Shen, Chao

Prabaswara, Aditya

Alias, Mohd Sharizal

Alhamoud, Abdullah
Alatawi, Abdullah

Albadri, Abdulrahman M.
Alyamani, Ahmed Y.
El-Desouki, Munir M.
Ooi, Boon S.

KAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
KAUST Grant Number
BAS/1/1614-01-01Date
2016-08-10Online Publication Date
2016-08-10Print Publication Date
2016-08-22Permanent link to this record
http://hdl.handle.net/10754/621836
Metadata
Show full item recordAbstract
Group-III-nitride laser diode (LD)-based solid-state lighting device has been demonstrated to be droop-free compared to light-emitting diodes (LEDs), and highly energy-efficient compared to that of the traditional incandescent and fluorescent white light systems. The YAG:Ce3+ phosphor used in LD-based solid-state lighting, however, is associated with rapid degradation issue. An alternate phosphor/LD architecture, which is capable of sustaining high temperature, high power density, while still intensity- and bandwidth-tunable for high color-quality remained unexplored. In this paper, we present for the first time, the proof-of-concept of the generation of high-quality white light using an InGaN-based orange nanowires (NWs) LED grown on silicon, in conjunction with a blue LD, and in place of the compound-phosphor. By changing the relative intensities of the ultrabroad linewidth orange and narrow-linewidth blue components, our LED/LD device architecture achieved correlated color temperature (CCT) ranging from 3000 K to above 6000K with color rendering index (CRI) values reaching 83.1, a value unsurpassed by the YAG-phosphor/blue-LD counterpart. The white-light wireless communications was implemented using the blue LD through on-off keying (OOK) modulation to obtain a data rate of 1.06 Gbps. We therefore achieved the best of both worlds when orange-emitting NWs LED are utilized as “active-phosphor”, while blue LD is used for both color mixing and optical wireless communications.Citation
Bilal Janjua, Tien Khee Ng, Chao Zhao, Hassan Makine Oubei, Chao Shen, Aditya Prabaswara, Mohd Sharizal Alias, Abdullah Ali Alhamoud, Abdullah Awaad Alatawi, Abdulrahman M. Albadri, Ahmed Y. Alyamani, Munir M. El-Desouki, and Boon S. Ooi, "Ultrabroad linewidth orange-emitting nanowires LED for high CRI laser-based white lighting and gigahertz communications," Opt. Express 24, 19228-19236 (2016)Sponsors
King Abdulaziz City for Science and Technology (KACST) (KACST TIC R2-FP-008); King Abdullah University of Science and Technology (KAUST) (BAS/1/1614-01-01).Publisher
The Optical SocietyJournal
Optics ExpressAdditional Links
https://www.osapublishing.org/abstract.cfm?URI=oe-24-17-19228ae974a485f413a2113503eed53cd6c53
10.1364/OE.24.019228